Research objectives: To determine the nutritional, reproductive characteristics of wild blotched snakehead as a scientific basis for developing its breeding and nursery techniques; to establish a number of specifications in the production of blotched snakehead in artificial conditions. | MINISTRY OF EDUCATION VIETNAM ACADEMY OF AND TRAINING SCIENCE AND TECHNOLOGY INSTITUTE OF SCIENCE AND TECHNOLOGY ----------------------------- TA THI BINH STUDY ON BIOLOGICAL CHARACTERISTICS AND DEVELOPMENT OF SEED PRODUCTION TECHNOLOGY FOR THE BLOTCHED SANKEHEAD Channa maculata Lacepède 1801 Major Zoology Code 9 42 01 03 The abstract of PhD Thesis in Biology Sciences HANOI 2020 i THIS THESIS IS COMPLETED AT INSTITUTE OF SCIENCE AND TECHNOLOGY VIETNAM ACADEMY Supervisors 1. . Nguyen Huu Duc 2. Dr. Do Van Tu Examiner 1 Examiner 2 Examiner 3 . The thesis will be defended infront of thesis defense comitee at Institute of Science and Technology-Vietnam Academy at in 2020. This thesis can be found at - Institute of Science and Technology Library - Vietnam National Library ii INTRODUCTION Among freshwater fish species Channidae belonging to Anabantiformes ordo are of interest to both international and vietnames researchers due to their large size delicious meat and high vitality. Many species have been well studied for their biological characteristics seed production and important aquaculture development in Asian countries such as Vietnam Thailand Cambodia Philippines India and Malaysia Muntaziana et al. 2013 . In Vietnam Channidae has only one Channa genus which comprises 12 species distributed across the country with many different names based on local languages. In particular the the striped snakehead C. striata and the giant snakehead C. micropeltes have been extensively studied and developed for aquaculture because of their large size and high economic value Nguyen Huan and Duong Nhut Long 2008 . Recently much attention has been paid on biological characteristics and seed production of the forest snakehead C. lucius Tien Hai Ly 2016 the dwarf snakehead C. gachua Ho My Hanh 2017 . While the blotched snakehead C. maculata is a potential species for aquaculture however its information of biological characteristics is limmited. There have been a few studies on
